Description
When asking curl to use a `.netrc` file to find credentials and at the same
time specifying a URL with a username(without a password), like
`https://user@example.com/`, curl could wrongly get and use the password for
*another* user set in the `.netrc` file for that host if such a one exists and
there is no match for the specified user.
Published: 2026-07-03
Score: 9.1 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Ubuntu USN Ubuntu USN USN-8487-1 curl vulnerabilities
History

Tue, 07 Jul 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-289
References
Metrics threat_severity

None

threat_severity

Moderate


Mon, 06 Jul 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 06 Jul 2026 01:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-200

Sun, 05 Jul 2026 05:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-200

Sat, 04 Jul 2026 12:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-200

Sat, 04 Jul 2026 05:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-200

Fri, 03 Jul 2026 21:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-200

Fri, 03 Jul 2026 10:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-200

Fri, 03 Jul 2026 08:00:00 +0000

Type Values Removed Values Added
First Time appeared Curl
Curl curl
Vendors & Products Curl
Curl curl

Fri, 03 Jul 2026 06:45:00 +0000

Type Values Removed Values Added
Description When asking curl to use a `.netrc` file to find credentials and at the same time specifying a URL with a username(without a password), like `https://user@example.com/`, curl could wrongly get and use the password for *another* user set in the `.netrc` file for that host if such a one exists and there is no match for the specified user.
Title password leak with netrc and user in URL
References

cve-icon MITRE

Status: PUBLISHED

Assigner: curl

Published:

Updated: 2026-07-06T17:02:33.061Z

Reserved: 2026-05-19T08:11:58.393Z

Link: CVE-2026-8926

cve-icon Vulnrichment

Updated: 2026-07-06T17:02:29.139Z

cve-icon NVD

No data.

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-07-03T06:15:45Z

Links: CVE-2026-8926 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-07-07T19:45:14Z

Weaknesses